You can’t have missed news of Prince Harry's impending nuptials. So, what will he wear to the Royal Wedding on 19 May? "Dress uniform is often worn at weddings and state events by members of the royal family who have served in the forces or hold honorary ranks," says Lucy Hume, co-author of Debrett's Wedding Handbook and associate director of etiquette specialists Debrett’s. "Only active members of the armed forces may wear uniform; permission to do so should be sought from a commanding officer. Each regiment has its own protocol for weddings; in some, it is not customary to wear uniform at all," she adds.

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So, it’s not certain that he will wear his dress uniform - Harry was captain of The Blues And Royals 662 Squadron but left in 2015. And if he doesn’t? We asked some of the top names in the business what they would like to see him wear instead…

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1 | Luke Day, GQ Fashion Director and GQ Style Editor

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"Ideally, he should wear British, but Alexander McQueen has been done by Kate Middleton, so maybe something like tailoring new guard Joshua Kane. I think he needs to look a bit more showbiz to go with her Hollywood fairytale dress. A white Edward Sexton double-breasted suit for going away - a nod to his grandfather in the hit TV show The Crown."

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2 | Katie Grand, Love editor-in-chief

"Harry should be the first person not on the catwalk to wear Kim Jones for Dior Homme. It would be a great debut for Kim’s new collection."

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3| Colin Heywood, managing director of Anderson & Sheppard

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"I would have thought he will wear military dress, as his father did when he married Princess Diana. If he doesn’t, then I would suggest a black morning coat with a dove-grey or a very pale and pastel-shaded vest and then a black-and-grey striped trouser – much like the morning suit we made for his father to marry the Duchess Of Cornwall. We would then suggest an evening change into something more relaxing, such as a traditional suit or a tuxedo."

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4 | William Gilchrist, stylist

"I would suggest an Out Of Africa theme for the wedding; his love of and keenness to live in Africa is well known. Attire could come from Ernst Brendler, an excellent safari and merchant seamen outfitter in Hamburg, thus he could visit extended family while getting suited and booted. For footwear, a pair of Friulanes with Maasai beading (where his grandmother became Queen) could be a nice touch."

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"I would love for him to wear something unusual for a prince. His mum was such a fashion icon, so it’s time the royal 'lads' took some risks. He would look amazing in a pastel-pink slim suit with a slight flare, no tie. I could only imagine the headlines if he wore something like this. Or if Alexander McQueen custom-made him a beautiful, dark silk suit – gothic and sexy. All eyes are on the bride but he should try and out-dress her. I sure would."

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"I hope he wears his uniform, as there's nothing more iconic, handsome and British. One of my favourite scenes is Richard Gere in An Officer And a Gentlemen: so hot!"

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7| Dean and Dan Caten, Dsquared2 designers

"Harry is a prince of England, he can wear any outfit he likes. Prince Harry is super charming and sophisticated – he’s known for his sense of humour so let’s do something fun. If we were to imagine an outfit for him on his special day, we would love to see him in a beautifully tailored suit."

"His personality and presence are strong. He has natural confidence. But could he wear a fun pair of shoes that complements the fabulous Meghan Markle’s look? Or what about a colourful or embroidered top hat? Let’s give a twist to the ultimate ceremony! Or... let’s look to the wedding party – a leather jacket, white T-shirt and denim."

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"I would imagine he will wear what they call 'number ones', which is their smartest uniform, but if he didn’t wear that he would more than likely wear a morning coat with cashmere trousers and a beige or grey double-breasted waistcoat and keep it very safe and simple. I personally would like to see him wear something a bit more flamboyant, with a Prince of Wales check waistcoat and matching Prince of Wales check trousers with a black morning coat. A little theatrical but super chic. That would be my choice."

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"Prince Harry tends to stick to a day-to-day uniform of classic items in varying shades of blue. And why not... it works for him. For the big day at Windsor Castle, our fifth in line would be best to not disregard his signature colour by opting for this striking blue tuxedo from Canali. He’s also partial to stacking on a beaded bracelet or five, but it may be time to swap his gap year-style jewellery for something a little more refined. A made-to-measure rose-gold-and-diamond bracelet from Tateossian would instantly elevate his wrist-stack game for the big day."

10| Tom Stubbs, stylist

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“I’d prescribe a look for Prince Harry that embraces both the lineage and craft of Savile Row, yet one which is also charged with the instinctive style savvy of one our cutting greats. Presenting Mr Edward Sexton (get it while you can, H, he ain’t gonna be cutting forever). Surrender to the sublime 22-inch wide-trouser-bottom style of Sexton’s 1972 glory cut in a Fox flannels cloth. I suggest a russet and chocolate bespoke flannel houndstooth (forget Prince of Wales check, let’s go with some real glamour). Swooping peak lapels and a shoulder line that the admiral of the fleet would be proud of. Then, throw in some stateside style in honour of his American spouse. Don a Bolo tie and steel-tipped collar shirt, and team with Western-style cowboy boots.”